https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204521

--- Comment #78 from Gary Jennejohn <gljennj...@gmail.com> ---
I notice that the driver currently limits the SD clock to a maximum of 50MHz.
In the Linux trace the clock is set to 208MHz.
I wonder whether the clock rate is contributing to the errors seen when
rtsx_xfer() is used.  In particular, CMD18 trying to read 8192 bytes in a
single transfer may be too fast for the controller/SD card to acheive at a
lower clock rate.

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